Patents by Inventor David O. Loe

David O. Loe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Device for the production of a tubular object
    Patent number: 4750873
    Abstract: In a device for the extrusion of a tube the extruded tube (2) is guided by a piston (20) placed inside said tube (2) at a distance from the extrusion head (1) the cooling of the extruded tube (2) is improved by means of nozzles (13) which spray water (5) at an angle against the inside of the tube (2) and away from the extrusion head (1), the said water sprays further kept away from the extrusion head by a fan (17) which blows air through the tube (2) away from the head (1) means (14-22) being provided for the supply and discharge of water and air respectively.
    Type: Grant
    Filed: July 8, 1986
    Date of Patent: June 14, 1988
    Assignee: Koninklijke Emballage Industrie Van Leer B.V.
    Inventors: David O. Loe, Gerrit J. Van Keimpema